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Skin Fittings Recessed

Skin Fittings Recessed

Skin Fittings Recessed

Product catalog summary
Product Overview
Tru-Design Recessed Skin Fittings are high-performance composite thru-hull solutions designed to reduce drag in marine environments. Manufactured in New Zealand, these fittings are made from glass fibre reinforced nylon composite, offering high strength, stiffness, and dimensional stability while being lightweight compared to metallic fittings. They eliminate corrosion and electrical bonding issues associated with metal fittings and comply with ISO International Standards for marine environments.
Models
The product range includes various sizes and thread types (BSP and NPS) in both black and white colors, catering to different installation needs.
Standards and Certifications
Tru-Design Skin Fittings are certified by the International Marine Certification Institute (IMCI) and meet ISO 9093-2 standards for non-metallic seacocks and through-hull fittings, except for the ½” size. They also have Bureau Veritas Marine Division Approval for commercial marine applications.
Key Features
  • Manufactured from glass reinforced nylon composite for high strength and lightweight.
  • Compatible with wood and GRP hulls, immune to corrosion and electrolysis.
  • Chemical and UV resistant, with a high-quality surface finish that is paintable.
  • Compatible with Tru-Design Ball Valves and BSPP threads, suitable for temperatures from -20°C to +110°C.
Specifications
Tru-Design Recessed Skin Fittings are suitable for wood and fiberglass/composite hulls. They are available in various sizes with specific flow diameters and hull thickness compatibility. Weights range from 26g to 136g depending on size.
Installation Instructions
Detailed installation instructions are provided, emphasizing the importance of proper location, drilling, and sealing using epoxy systems. The fittings should be installed with care to ensure a watertight and mechanically strong seal.
Thread Sealant Methods
  • Teflon tape: Traditional method, requires careful application.
  • Sikaflex 291i and 3M Fast Cure 5200: Provide strong adhesion and sealing, with specific curing times.
  • Locktite 55 Thread Cord: Offers a faster sealing method than Teflon tape, allowing for repositioning without losing the seal.
Additional Notes
Tru-Design Skin Fittings use British Standard Pipe Parallel (BSPP) threads and should not be mixed with tapered threads to avoid damage. No electrical bonding is required due to the non-corrosive nature of the composite material. Regular checks and minimal servicing are recommended to ensure secure fittings.
Disclaimer
Tru-Design Plastics Ltd. disclaims responsibility for improperly installed or tampered products. The information provided is believed to be accurate but is subject to change without notice.
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Catalog excerpts

Skin Fittings Recessed-1

PRODUCT INFORMATION RECESSED SKIN FITTINGS Designed and made in New Zealand, Tru-Design Recessed Skin Fittings are the superior composite thru-hull solution for reduced drag. Skin Fitting Recessed Skin Fitting The Recessed Skin Fitting body and nut are moulded from glass fibre reinforced nylon composite. High strength, high-modulus glass fibres provide dramatic strength, stiffness, toughness and dimensional stability. These properties allow a significant weight reduction over metallic fittings (weights listed on Page 3). Tru-Design Skin Fittings eliminate the corrosion and electrical bonding problems associated with metallic fittings. Our Skin Fittings meet ISO International Standards giving added assurance of performance in the harsh marine environment. MODELS Part # Skin Fitting Recessed ½” BSP Black Skin Fitting Recessed ½” NPS Black Skin Fitting Recessed ¾” BSP Black Skin Fitting Recessed ¾” NPS Black Skin Fitting Recessed 1” BSP Black Skin Fitting Recessed 1” NPS Black Skin Fitting Recessed 1¼” BSP Black Skin Fitting Recessed 1¼” NPS Black Skin Fitting Recessed 1½” BSP Black Skin Fitting Recessed 1½” NPS Black Skin Fitting Recessed ½” BSP White Skin Fitting Recessed ½” NPS White Skin Fitting Recessed ¾” BSP White Skin Fitting Recessed ¾” NPS White Skin Fitting Recessed 1” BSP White Skin Fitting Recessed 1” NPS White Skin Fitting Recessed 1¼” BSP White Skin Fitting Recessed 1¼” NPS White Skin Fitting Recessed 1½” BSP White Skin Fitting Recessed 1½” NPS White Doc: PIS - Recessed Skin Fittings 3.0.doc LEADERS IN MARINE COMP

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Skin Fittings Recessed-2

PRODUCT INFORMATION STANDARDS Tru Design Skin Fittings are certified by the International Marine Certification Institute (IMCI) to meet; ISO 9093-2 Small craft -- Seacocks and through-hull fittings -- Part 2: Non-metallic *Note – ½” Skin Fittings do not meet ISO 9093-2 In meeting ISO 9093-2, our skin fittings have been tested with a 155kg load hanging off a ball valve and hose fitting as shown. Bureau Veritas – as of August 28, 2012 Tru Design have Bureau Veritas Marine Division Approval (certificate #27801/A0 BV) for Skin Fittings, Ball Valves, and Aquavalves. This covers the commercial marine...

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Skin Fittings Recessed-3

PRODUCT INFORMATION SPECIFICATIONS HULL COMPATIBILITY Tru-Design Recessed Skin Fittings are suitable for installation in wood and fiberglass / composite types of hull construction. Tru-Design Recessed Skin Fittings are also able to be used on caulked solid wood hulls – care should be taken to only locate the skin fitting in the centre of any individual plank. FLOW DIAMETER & HULL THICKNESS Size Maximum Hull Thickness DIMENSIONS & WEIGHTS All dimensions in millimetres. All dimensions nominal. All weights in grams. Doc: PIS - Recessed Skin Fittings 3.0.doc LEADERS IN MARINE COMPOSITE FITTINGS

 Open the catalog to page 3
Skin Fittings Recessed-4

PRODUCT INFORMATION INSTALLATION Full installation instructions are supplied with the Recessed Skin Fitting. Location & Drilling: Ensure there is sufficient room on the inside of the boat to allow the Ball Valve to be screwed onto the Skin Fitting without hitting the bulkhead or other part of the hull. Also ensure it is located where no inadvertent opening or closing of the valve can occur. Mark the location. Drill from the inside a pilot hole 3mm in diameter. Drill from the outside of the hull a recess that is 1mm larger in diameter than the flanged head of the chosen Recessed Skin Fitting....

 Open the catalog to page 4
Skin Fittings Recessed-5

PRODUCT INFORMATION Sikaflex 291i Takes approximately 2 hours to cure, then hoses can be attached. Full cure takes 24 hours. The Skin Fitting is not able to be turned after cure but can be undone with the use of a larger spanner. The nut does not crack open easily and has to be unscrewed the whole way by spanner which shows how well it has adhered and sealed the joint. Colour = Black. 3M Fast Cure 5200 Takes slightly less than 2 hours to cure, then hoses can be attached. Full cure takes 24 hours. The Skin Fitting is not able to be turned after cure but can be undone with the use of a larger spanner....

 Open the catalog to page 5
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.